From f9c7d4f99f51ac9c1cf513111c21395f93d2dd53 Mon Sep 17 00:00:00 2001 From: Sean Anderson Date: Wed, 24 Jun 2020 06:41:11 -0400 Subject: clk: Add K210 clock support Due to the large number of clocks, I decided to use the CCF. The overall structure is modeled after the imx code. Clocks parameters are stored in several arrays, and are then instantiated at run-time. There are some translation macros (FOOIFY()) which allow for more dense packing. Signed-off-by: Sean Anderson CC: Lukasz Majewski --- include/kendryte/clk.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 include/kendryte/clk.h (limited to 'include/kendryte') diff --git a/include/kendryte/clk.h b/include/kendryte/clk.h new file mode 100644 index 0000000000..9c6245d468 --- /dev/null +++ b/include/kendryte/clk.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2019-20 Sean Anderson + */ + +#ifndef K210_CLK_H +#define K210_CLK_H + +#define LOG_CATEGORY UCLASS_CLK +#include +#include + +static inline struct clk *k210_clk_gate(const char *name, + const char *parent_name, + void __iomem *reg, u8 bit_idx) +{ + return clk_register_gate(NULL, name, parent_name, 0, reg, bit_idx, 0, + NULL); +} + +static inline struct clk *k210_clk_half(const char *name, + const char *parent_name) +{ + return clk_register_fixed_factor(NULL, name, parent_name, 0, 1, 2); +} + +static inline struct clk *k210_clk_div(const char *name, + const char *parent_name, + void __iomem *reg, u8 shift, u8 width) +{ + return clk_register_divider(NULL, name, parent_name, 0, reg, shift, + width, 0); +} + +#endif /* K210_CLK_H */ -- cgit v1.2.1